The use cases I envision are anything from historical sequences to personal diaries (you can keep a sequence private), and anything else where a timeline makes sense. I even have an example of using the oEmbed feature with YouTube videos, in that case a selection of punk rock songs over its history.

Some development notes:

In designing the layout I tried to keep to a minimalist, clean design.

I have tried to keep it accessible for users of accessibility technologies. This also means that the site should work just fine if you disable javascript.

A lot of different open-source tools have contributed to its development.

Being my own critic is difficult, so I would love some feedback on both the design and function of the site. But, here are a few of my own complaints (I will keep it short):

Having the search form at the top seems to make it unnecessarily busy. My layout didn’t leave a good option for its placement. It kind of fits there, but it could be better.

The SIMILE Timeline has a lot going for it, but it’s also kind of clunky both to use and to integrate into a website. I would like to replace it eventually, and I would strongly prefer to use an accessible replacement.

The CSS could be a bit cleaner, but there’s a trade off between the caching and dynamic inclusion of particular directives.

Adding events to sequences seems tedious, but that may just be the nature of the sorts of timelines I built for examples.

Anyway, check it out and leave some feedback. I’ll be happy to hear it, even if it’s “no one will use this ever, but it’s also ugly.”